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aes_ccm.h revision 1.1 
      1 /*	$NetBSD: aes_ccm.h,v 1.1 2020/07/25 22:15:55 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef	_CRYPTO_AES_AES_CCM_H
     30 #define	_CRYPTO_AES_AES_CCM_H
     31 
     32 #include <sys/types.h>
     33 
     34 struct aesenc;
     35 
     36 struct aes_ccm {
     37 	const struct aesenc	*enc;
     38 	uint8_t			auth[16];
     39 	uint8_t			in[16];		/* AES input block */
     40 	uint8_t			out[16];	/* AES output block */
     41 	size_t			mlen, mleft;
     42 	unsigned		i, nr, L, M;
     43 };
     44 
     45 void aes_ccm_init(struct aes_ccm *, unsigned, const struct aesenc *,
     46     unsigned, unsigned, const uint8_t *, unsigned, const void *, size_t,
     47     size_t);
     48 void aes_ccm_enc(struct aes_ccm *, const void *, void *, size_t);
     49 void aes_ccm_dec(struct aes_ccm *, const void *, void *, size_t);
     50 void aes_ccm_tag(struct aes_ccm *, void *);
     51 int aes_ccm_verify(struct aes_ccm *, const void *);
     52 
     53 int aes_ccm_selftest(void);
     54 
     55 #endif	/* _CRYPTO_AES_AES_CCM_H */
     56